EliasFleckenstein03
/
plan9front
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

games/snes: SPC ADDW/SUBW fix

front
aiju 2014-03-17 14:57:37 +01:00
parent f2f46f4a33
commit 656b427bda
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/src/games/snes/spc.c
View File

@ -581,6 +581,7 @@ spcstep(void)
case 0x79: cmp(spcread(sX|dp), spcread(sY|dp)); return 5;
case 0x7A:
b = memd16(azp());
sP &= ~SPCC;
sA = adc(sA, b);
sY = adc(sY, b >> 8);
if(sA != 0)
@ -625,6 +626,7 @@ spcstep(void)
case 0x99: spcwrite(sX|dp, adc(spcread(sX|dp), spcread(sY|dp))); return 5;
case 0x9A:
b = memd16(azp());
sP |= SPCC;
sA = sbc(sA, b);
sY = sbc(sY, b >> 8);
if(sA != 0)